70~300mm plus 1x filter

After seeing all the great closeups posted to this forum I decided to purchase a set of closeup filters for my 70~300mm G lens.
This was shot with my D70, 300mm + 1x filter and SB800 then PP and heavily cropped in PS.
Any comments or tips on using this combination?
Shutter Speed 1/500 sec
Aperture f/9
Exposure Bias -0.67 EV
ISO 800
Focal Length 200.00 mm
Cheers - Greg
This was shot with my D70, 300mm + 1x filter and SB800 then PP and heavily cropped in PS.
Any comments or tips on using this combination?

Shutter Speed 1/500 sec
Aperture f/9
Exposure Bias -0.67 EV
ISO 800
Focal Length 200.00 mm
Cheers - Greg